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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Moray
I think I fused the Pico...
While just connected to USB I get a plain red light, and get the same if I try to invoke the bootloader.
By connecting a breadboard power supply between GND and BAT_IN, I have been able to resurrect the Pico (saw this in another thread)
But is there anything I can do to get it back up and running without the PSU?